API 5CT 9-5/8" OD269.88mm * WT 21.38mm P110 Coupling Stock

API 5CT 2-7/8" OD94.00mm * WT13.00mm L80 Coupling Stock

ASTM A333 GR 6

ASTM A335 P9

ASME A179

ASTM A106 GR B

API 5CT 9-5/8" OD269.88mm *21.38mm P110-CY Coupling Stock

API 5CT 2-3/8“ OD79.00mm * WT11.10mm L80 Coupling Stock